A baseball is hit by a bat and is launched in a projectile motion at 30^o above the horizontal. At the top of the baseball's trajectory A) its acceleration is zero and its velocity is nonzero. B) both its acceleration and its velocity are zero. C) its acceleration is nonzero and its velocity is zero. D) its acceleration is nonzero and its velocity is nonzero.

Question

Quizplus · Accepted Answer

At the top of its trajectory, a projectile has a horizontal velocity component but its vertical velocity component is zero. However, it is still accelerating downward due to gravity at approximately 9.8 m/s^2.

A Baseball Is Hit by a Bat and Is Launched